diff --git a/src/features/projects/services/repoScan.ts b/src/features/projects/services/repoScan.ts
index 8a4cb55..b3d5949 100644
--- a/src/features/projects/services/repoScan.ts
+++ b/src/features/projects/services/repoScan.ts
@@ -5,7 +5,7 @@ import { taskControl } from "@/shared/services/taskControl";
 type GithubTreeItem = { path: string; type: "blob" | "tree"; size?: number; url: string; sha: string };
 
 const TEXT_EXTENSIONS = [
-  ".js", ".ts", ".tsx", ".jsx", ".py", ".java", ".go", ".rs", ".cpp", ".c", ".h", ".cs", ".php", ".rb", ".kt", ".swift", ".sql", ".sh", ".json", ".yml", ".yaml"
+  ".js", ".ts", ".tsx", ".jsx", ".py", ".java", ".go", ".rs", ".cpp", ".c", ".h", ".cc", ".hh", ".cs", ".php", ".rb", ".kt", ".swift", ".sql", ".sh", ".json", ".yml", ".yaml"
   // 注意：已移除 .md，因为文档文件会导致LLM返回非JSON格式
 ];
 const MAX_FILE_SIZE_BYTES = 200 * 1024;
diff --git a/src/features/projects/services/repoZipScan.ts b/src/features/projects/services/repoZipScan.ts
index a73dcfe..baf8dbd 100644
--- a/src/features/projects/services/repoZipScan.ts
+++ b/src/features/projects/services/repoZipScan.ts
@@ -4,7 +4,7 @@ import { api } from "@/shared/config/database";
 import { taskControl } from "@/shared/services/taskControl";
 
 const TEXT_EXTENSIONS = [
-  ".js", ".ts", ".tsx", ".jsx", ".py", ".java", ".go", ".rs", ".cpp", ".c", ".h", 
+  ".js", ".ts", ".tsx", ".jsx", ".py", ".java", ".go", ".rs", ".cpp", ".c", ".h", ".cc", ".hh",
   ".cs", ".php", ".rb", ".kt", ".swift", ".sql", ".sh", ".json", ".yml", ".yaml"
   // 注意：已移除 .md，因为文档文件会导致LLM返回非JSON格式
 ];
@@ -99,6 +99,9 @@ function getLanguageFromPath(path: string): string {
     'rs': 'rust',
     'cpp': 'cpp',
     'c': 'cpp',
+    'cc': 'cpp',
+    'h': 'cpp',
+    'hh': 'cpp',
     'cs': 'csharp',
     'php': 'php',
     'rb': 'ruby',
diff --git a/src/pages/InstantAnalysis.tsx b/src/pages/InstantAnalysis.tsx
index ce52d08..9b4618e 100644
--- a/src/pages/InstantAnalysis.tsx
+++ b/src/pages/InstantAnalysis.tsx
@@ -226,6 +226,9 @@ public class Example {
         'rs': 'rust',
         'cpp': 'cpp',
         'c': 'cpp',
+        'cc': 'cpp',
+        'h': 'cpp',
+        'hh': 'cpp',
         'cs': 'csharp',
         'php': 'php',
         'rb': 'ruby'
@@ -523,7 +526,7 @@ public class Example {
             <input
               ref={fileInputRef}
               type="file"
-              accept=".js,.jsx,.ts,.tsx,.py,.java,.go,.rs,.cpp,.c,.cs,.php,.rb"
+              accept=".js,.jsx,.ts,.tsx,.py,.java,.go,.rs,.cpp,.c,.cc,.h,.hh,.cs,.php,.rb"
               onChange={handleFileUpload}
               className="hidden"
             />
diff --git a/src/shared/utils/utils.ts b/src/shared/utils/utils.ts
index dfd1fd5..8102292 100644
--- a/src/shared/utils/utils.ts
+++ b/src/shared/utils/utils.ts
@@ -91,6 +91,9 @@ export function getLanguageFromExtension(extension: string): string {
     'rs': 'rust',
     'cpp': 'cpp',
     'c': 'cpp',
+    'cc': 'cpp',
+    'h': 'cpp',
+    'hh': 'cpp',
     'cs': 'csharp',
     'php': 'php',
     'rb': 'ruby',